IS-R-003:Icelandic suppliers must provide complete address with street name and...
Fix: This requires user input to resolve. Review the relevant cbc: and cac: elements in your Invoice XML and provide the correct value. (IS-R-003). Provide the required value in the free validator.
Icelandic suppliers must provide complete address with street name and postal code. This is mandatory for Icelandic invoices.
Engine Classification
Business data required · Explicit input workflow · No assumptions made
Required input: Seller Street Name, Seller Postal Code
What is IS-R-003?
IS-R-003 is a fatal validation rule defined in the CIUS-IS (Iceland) specification (ISL national rules).
When this rule fires, the invoice is rejected by Peppol access points and never reaches the buyer.
Why This Error Matters
Invoice will be rejected by Icelandic validation. Complete seller address is mandatory.
IS-R-003 is a hard failure — the invoice must be corrected and re-sent before it can reach the recipient.
Validator Behavior
- ·Causes invoice rejection
- ·Error returned: IS-R-003
- ·Specification: CIUS-IS (Iceland)
How to Fix It
Identify the missing data
Icelandic suppliers must provide complete address with street name and postal code. This is mandatory for Icelandic invoices.
Provide the required value
This requires user input to resolve. Review the relevant cbc: and cac: elements in your Invoice XML and provide the correct value. (IS-R-003).
Re-validate your invoice
Upload the corrected invoice to confirm IS-R-003 is resolved.
Before / After
<Invoice> <!-- Issue: Icelandic suppliers must provide complete address with stree --> </Invoice>
<Invoice> <!-- Issue resolved per CIUS-IS (Iceland) --> </Invoice>
Technical Reference
Common Causes
- ·Street name missing from seller address
- ·Postal code not provided
- ·Incomplete address information
- ·Address fields not mapped in export
- ·Company address incomplete in master data
Seeing this in production? The API handles IS-R-003 automatically. See the fix response →
Frequently Asked Questions
Icelandic suppliers must provide complete address with street name and postal code. This is mandatory for Icelandic invoices.
This requires user input to resolve. Review the relevant cbc: and cac: elements in your Invoice XML and provide the correct value. (IS-R-003). You can also use Invoice Navigator's compliance engine to correct this automatically in your pipeline.
Yes, IS-R-003 is a critical error that will cause invoice rejection. It must be fixed before submission.
Many instances of IS-R-003 can be automatically corrected using Invoice Navigator's compliance engine. The fix is applied in your pipeline with full audit evidence.
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Last updated: 14 April 2026
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